JC

John Christianson

EM Empire Level Mfg.: 11 patents #2 of 14Top 15%
MT Milwaukee Electric Tool: 11 patents #195 of 1,087Top 20%
HI Harken, Incorporated: 2 patents #8 of 29Top 30%
📍 Waukesha, WI: #42 of 1,162 inventorsTop 4%
🗺 Wisconsin: #1,349 of 40,088 inventorsTop 4%
Overall (All Time): #160,915 of 4,157,543Top 4%
25
Patents All Time

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDate
12031845 Vial with improved visibility for level Roger D. Neitzell, Daniel L. Block, Richard J. LaSota 2024-07-09
11740082 Level including removable end caps Roger D. Neitzell, Fraizier Reiland, Christopher F. Boehme 2023-08-29
11506491 Vial with improved visibility for level Roger D. Neitzell, Daniel L. Block, Richard J. LaSota 2022-11-22
11346664 Level including removable end caps Roger D. Neitzell, Fraizier Reiland, Christopher F. Boehme 2022-05-31
10823561 Vial with improved visibility for level Roger D. Neitzell, Daniel L. Block, Richard J. LaSota 2020-11-03
10697770 Level including removable end caps Roger D. Neitzell, Fraizier Reiland, Christopher F. Boehme 2020-06-30
D887874 Framing square Eric Mackey, David W. Draeger 2020-06-23
D866359 Framing square Eric Mackey, David W. Draeger 2019-11-12
10281274 Level and level-straightedge system Daniel L. Block 2019-05-07
9909870 Level including removable end caps Roger D. Neitzell, Christopher F. Boehme, Fraizier Reiland 2018-03-06
9347774 Angular indicator tool 2016-05-24
D723954 Angular indicator tool 2015-03-10
8745885 Box level Charles Dunn Kim 2014-06-10
8413342 Level with a magnet-mounting structure 2013-04-09
8375591 Box level Charles Dunn Kim 2013-02-19
8291605 Box level Charles Dunn Kim 2012-10-23
8291604 Box level Charles Dunn Kim 2012-10-23
8011109 Casing mount for a cylindrical vial Roger D. Stanford 2011-09-06
D628914 Torpedo level Charles Dunn Kim, Steven Wayne Bockmann 2010-12-14
7832112 Vial-mounting structure 2010-11-16
D623544 Box level Charles Dunn Kim, Steven Wayne Bockmann, Ryan Sprouse Dart 2010-09-14
D618120 Side brace for central-vial region of a box level Charles Dunn Kim, Steven Wayne Bockmann 2010-06-22
6722303 Fairlead and cam assembly Chuck Lob 2004-04-20
6520103 Boom vang for sailing vessel Greg Hartlmeier, Douglas Drake 2003-02-18
5067709 Unassisted lower torso strengthening and stretching device 1991-11-26